Improvement in base-burning heating-stoves



3 Sheets--Sheetv 2, J. DWYER & J. V. B. CARTER. BASE-BURNING I-I EATING-STOV'ES.

Patented 0ct.17, 1876.

3 Sheets-Shevet 3,

J. DWYER v. J, V. B. CARTER.

BASE-BURNING HEATING-STOVES. l No. 183,383. Patented 0ct.17,1876.

' NITED f'S'rA'rES Erica JAMES DWYEE AND JOHN v. B. CARTER, 0E DETROIT, MICHIGAN, ASSIeNoES, BY MESNE ASSIGNMENTS, To .SAMUEL H. EANSoM, TEUSTEE'OE ALBANY, NEw YORK.

IMPROVEMENT IN lBASE-BURNING H EATI NG`STVE'S.

Specification forming partof vLetters Patent No. 183,383, dated October 17, 1876; application filed May 22, 1874.

' To all 'whom it mag/'concern improvement in that class lof base-,burning stoves which are provid'edwitha double basel under the ash-pit, and so arranged that the draft may be reverted through the base-chamber, and are known as base-heaters 5 and it consists, lirst, in the combination-of two descending flues and one ascending lue,inclosed within the shell and on the rear of the stove, with corresponding ues in a hollow base, entirely filling the same; secondly, in the combination o f certain Hue-strips in the base with the ascending and descending ues, and a curved partition at their upper ends, having a damper-opening; thirdly, in combination with the grate and fire-pot, the arrangement of certain segmental Islides or followers behind slots in the walls of the stove, whereby a poker may be introduced to vibrate the grate or to remove clinkers and ashes from its surface without permitting the escape of dust from the stove, as more fully hereinafter set forth. l

Figure l, Sheet 1, is a perspective viewv of our stove,with portions of the outer wall, magazine, and lire-pot broken out, and the ash-pit bottom plate removed, to better show the internal arrangement. Fig. 2 is an enlarged vertical section of the fire-pot, grate, Vand ring, and the upper part of the ash-pit section, ta-

p ken in the plane o v in Fig. 6. Fig. 3 is a longitudinal vertical section at fw win Fig. 5. Fig. 4 is a transverse vertical section at o t, Figs. 5, 6, and 7. Fig. 5y is a horizontal section at :v w, Fig. 3. Fig. 6 is a similar section at y y. Fig. 7 is a similar section at z z.

Similar letters of reference indicate corresponding parts in the several figures.

In the drawing, A represents the base section; B, the ash-pit; C, the fire-pot section; and D, the illuminating section, in which is suspended the lower or discharge end of the magazine E. A' is the bottom plate. B is the bottom Aplate "of theash-pit, which'can be lifted :out `when the ash-'pitdoors are open, there- -by facilitating the removal of dust and ashes from the base-chamber. C iis vthe ring which separates the sections B andfC, and which projects inwardly from their walls. D is the ring "which separates the sections G and D,fhaving secured a curved and inclined partition, e, hav- 'ing' an opening, e1, in the upper part ot' its middle, vwhich may be closed by a iap-damper, f. The partition is of vsuch Shape as to include the side lues on its front side, which are thus separated from the central ue which is behind it. An opening, e2, is made in the section D for the exit of thegaseous products of combustion, which may pass up the iue H through the opening c1 when the damper f is thrown back, as indicated in Fig. 3 by the arrow t. When the opening e1 is closed by the damper f, the products of combustion divide and pass down through the lines c cinto the base,where` the currents pass around outside of two lluestrips, g, in the form of Segments of a circle, and inclined inwardly. In the front part of the base-ch amber the divided currents reunite and ow back, rising up through the central ne d into the smoke-pipe H, which carries them to a chimney, their course, when thus reverted, being indicated by the arrows t'. The segmental flue-strips g compel the heated cnrrents 'to pass in con tact with the entire periphery of the base-section, which is thereby more thoroughly heated than it would be if the ordinary straight strips were employed in the base. The lower edge of the fire-pot is toothed or slotted, the linger-like projections h being inclined `more sharply inward than the Walls of the pot, to wedge the mass of incandescent fuel, and to prevent it fromjffalling out over the edge of the grate-ring below when the clinkers are being raked oft'.` I is a lat ring, of the same or a lesser diameter than the bottom of the fire-pot, a short distance below which it is supported by threebraces, k, springing from the ring C', to which they arebolted. J is the grate, having its center stud pivoted in a h ole in the middle of a trunnion-bar, l, Whose ends are pivoted in lugs at the sides of the stationary ring C', so that the grate may have a vibratory movement in thehorizontal plane, or be tilted, to dump the coal. The lower part of the section. C, at the plane of the grate, has a series of slots, m, Fig. 6,v cut in its periphery, each of which is fitted with a slidingv segment or follower, ln., 011 the inner side, any of which may be opened to permit -the introduction of a hooked poker, K, Fig. 4,- `for raking ofi' the grate and ring any clinkers that may have accumulated thereon. In the front slot a straight poker, K', Fig. 6, is intro- Vduced and inserted in a hole in the upturned end of a lug,`o, Figs. 4, 5, and 6, which lng is `cast on the rim of the grate and passes` under: the ring before being turned up, so as to per- .mit the grate to be tilted when desired. p is `a dust-register, opening from the `ash-pitinto the iue d. "By openingthis register Whilethe grate is being shaken, thedust and light ashes will be drawn up the flue. p y,

What we claim as our invention, and `desire to secure by Letters Patentpis-f i l y 1. In a.. heatiugsstove, the `combination of `two descending fines `and one ascending flue,

or partially for the purpose of inserting a poker through` said slots, toclear off the top ofthe grate, and at the same time prevent the escape of fdust, substantially as described.

. JAMES` DWYER. 1

\ JOHN V. B. CARTER. l

Witnesses:

H. F. EBERTs, H. S. SPlatAerUE.l 

